The correct holding of the hand when writing and for



c. HA USELMANN. DEVICE FOR SECURING THE COBRECI HOLDING OF THE HAND WHENWRITING AND FOR FACILITATINGSUCH WRITING. APPLICATION FILED FEB. 1.1910.

1,303,304, Patented May 13, 1919.

" hurman STATES PATENT OFFICE.

CHRISTIAN HAUSELMANN, or SUMISWALD, SWITZERLAND.

DEVICE FOR SECURING THE CORRECT HOLDING- OF THE HAND WHEN WRITING AN DFOR FACILITATING SUCH WRITING.

Specification of Letters latent.

Patented May 13, 1919.

Application filed. February 7, 1918. Serial No. 215,849.

To all whom it may concern:

Be it known that I, CHRISTIAN Hliusnn- MANN, a citizen of the SwissConfederation, and residing at Sumiswald, Switzerland,

. have invented a certain new and useful Im- It consists of a curvedplate attachable to the elbow-side of a hand and provided with anoutwardly-projecting part adapted to support the hand on a writing'restso as to keep the hand out of contact with sald rest.

The accompanying drawing represents one working form of the device as anexample.

Figure 1 is a top-view of the same.

Fig. 2 a side elevation of the left hand side of Fig. 1.

Fig. 3 an end view.

Figs. 4 and 5 are views of details, and

Fig. 6 is a top-view of the device fitted to a hand.

The cylindrically curved plate 1 is shaped near to one end of it into ahemispherical socket 2 (Fig. 4) with a perforated apex.

The likewise hemispherical head 3 of a screw 4 is lodged within saidsocket the stem of said screw projecting through the perforation of thesocket to its outside and carrying there a cap 5 and a fiat spring 7slidable lengthwise and tightened agalnst the cap by means of a milledscrew nut 6. By this means the cap from the outside of the hand and thehead 3 of screw 4: from the inside are pressed against the walls of thesocket 2 so as to steady the parts 3, 4:, 5, 6 and 7 in said socket. Byloosening the nut all said parts may be adjusted within certain limitsin any direction and besides the spring may be turned around screw 4:.The somewhat outwardly curved sprlng 7 carries at its end a socket 8 andhas lodged therein, so as to project somewhat therefrom, a ball 9,serving as support for a hand against which the plate 1 is secured 1nthe manner shown in Fig. 6. Plate 1 1s pro vided on its outside and toboth sides of its ridge-line with two longitudinal ribs 10 and outsideof the same with screw-studs 11 which are carrying a springy and curvedblade 13 tightened thereonto by means of screw. nuts 12. By the more orless tighten- 111g of said nuts the blade 13 will be bent more Or lessso that its free ends may be adusted at a distance from each othercorresponding to the thickness of the hand to be supported. In a slot 14provided in the one end of this blade 13 a clamp 16 is made adjustableby means of a screw 15 and a fiat sprin 17 i inserted between clamp 16and blade 13 and crosswise to said blade, said spring 17' being bent atits ends as shown in Fig. 2 and being provided with a slot or with anumber of holes. The end of blade 13 as shown in Fig. 3 on the top side13 fitted on the inside with a bearing-plate 18 and the ends of spring17 are fitted with bearing-plates 19 and 20 by means of which spring 17is bearing against the rear, while plate 18 is bearing against the palmof the hand fitted with the device. The plates 18, 19 and 20 arepreferably made of elastic matter, as for instance of cork. A rod 21 isstuck through a perforation of clamp 16 and may be adjusted by means ofa set screw 22. One end of rod 21 is bent inwardly and carries aswiveled and springy blade 23 provided on its inside with twobearing-plates 24. This blade 23 is intended to grasp the thumb-side ofthe wrist. In order to have it bearing against the wrist a helicalspring 26 is provided on said rod 21 between clamp 16 and the knob 25,with the tendency to push rod 21 upwardly as seen in Fig. 6.

When blade 23 is hearing against the wrist, screw 22 is to be tightened.In this way the device will become sufficiently well secured to the handso as to move freely with the same. While writing with the hand fittedwith the described and represented device ball 9 will bear against thewriting-rest so as to support the elbow-side of the hand at a determinedand adjustable height above the writing surface. The hand will be forcedthereby to a correct holding for writing. By a corresponding adjustmentof spring 7 the resting point of the hand may be displaced more to theinward or to the outward, ac- COI'diI'lg to need. Owing to the springyarrangement of the resting-point the hand is not supported rigidly butelastically.

The taking-ofi' of the device from the hand is effected by loosening theset screw 22, by

pulling the rod 21 in an opposite direction from the action of spring 26and by turning the rod, so as to bring the blade 23 on the top-side ofthe wrist. The adjusting of the device on the hand is effected in acontrary manner and may be easily done and performed with the left hand.

The device as described and represented in the above is particularlywell suited for persons with-unwieldy hands and may be fitted to handsof any size.

Claims:

1.111 a device for securing the correct holding of the hand when Writingand for facilitating such writing, the combination with a curved plateattachable to the elbow- 'side ofthe hand, of a hemispherical socketformed on said plate and of a flat spring attached adjustably at one endto said socket and carrying at 1ts other and free end a rotary ball allas shown and described and for the purpose set forth.

2. In a device for securing the correct holding of the hand whenwriting, the coinbination with a cylindrically curved plate having twolongitudinal ribs on its outside at equal distances from its center, ofscrewstudswith nuts outside of said ribs, of a springy and curved bladesecured to said ribs and studs, of a rotary and slidable curved rodfitted on one end of said blade, of a swiveled'and springy blade fittedto the curved end of said rod, all substantially as shown and describedand for the purpose set forth.

3. In a device for securing the correct holding of the hand whenwriting, the combination with a cylindrically curved plate,

having two longitudinal ribs on its outside at equal distances from itscenter, of screwstuds with nuts outside of said ribs, of a springy andcurved blade secured to said ribs and studs, of a rotary and slidablecurved rod fitted on one end of said blade, of a helical spring sleevedon said rod and of a swiveled and springy blade fitted to the curved endof said rod and carrying bearingplates all substantially as shown anddescribed and for the purpose set forth.

4. In a device for securing the correct holding of the hand whenwriting, the combination with a cylindrically curved plate of ahemispherical socket formed on said plate, of a flat spring attachedadjustably with one end to said socket and carrying at its other andfree end a rotary ball, of two longitudinal ribs provided on the outsideand to both sides of the center line of said plate, of screw-studs withnuts outside of said ribs, of a springy and curved blade secured to saidribs and studs, of a rotary and slidable curved rod fitted on one end ofsaid blade, of a bent flat spring secured to the same end of the bladeand provided with bearing-plates, of a swiveled and springy bladeprovided with bearing-plates and fitted to the curved end of said rod,and of a bearing-plate fitted to the other end of said blade; allsubstantially as shown and described and for the purpose set forth.

In testimony whereof I affix my signature in the presence of twowitnesses.

CHRISTIAN HAUSELMANN.

Witnesses:

vHANs RINDERKUEGHT,

FRIEDRICH ARONING.

Copies of this patent may'be obtained. for five cents each, byaddressing the Commissioner of Patents,

Washington, D. 0.

